young



3 Sheets-Sheet 1.

(No Model.)

J. YOUNG.

ELECTRIC SIGNALING APPARATUS.

Patented Jan. 29, 1889.

(No Model.) 3 Sheets-Sheet J. YOUNG.

,ELEOTRIG. SIGNALING APPARATUS. No. 396,795. Patented Jan. 29, 11889.

r V fil lll va7%a7n 3 Sheets-Sheen 2.

(No Model.)

J. YOUNG.

ELECTRIC SIGNALING APPARATUS.

Patented Jan. 29

N. PETERS, Phnlu-Lilhqgmphur. Washingon, D. C.

rric.

JOHN YOI NG, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE \VESTERN ELECTRICCOMPANY, OF SAME PLACE.

ELECTRIC SIGNALING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 396,795, dated JanuaryQQ, 1889.

Application filed uly 18, 1384- To all whom it may concern:

Be it known that 1, JOHN YOUNG, a citizen of the United States, residingat Chicago, in the county of Cook and State of Illinois, have invented acertain new and useful Improvement in Electric Signaling Apparatus, ofwhich the following is a full, clear, concise, and exact description,reference being had to the accompanying drawings, forming a part of thisspecification.

My invention relates to electric apparatus for sending signals; and itsobjects are to enable the clerk at a hotel to answer back when a guestcalls, to summon a guest at any time,

and in case of fire or other danger to ring the bells successively inthe different rooms.

My invention consists in a dial placed in the office of the hotel and abell in each of the rooms, in combination with circuits, as hereindescribed and claimed.

The apparatus which I have devised is of great utility, either alone orin connection with the hotel-annunciator systems now in use.

I11 the drawings, which are illustrative of 2 5 my invention, Figure 1is a front elevation of my dial provided with forty signaling-keys. Fig.2 is a transverse vertical sectional view. Fig. is arear view of aportion thereof. Fig. at is a detailed view of one of the keys in its 0normal position. Fig. 5 is a detailed view of the same depressed and ofone of the wheels carried by the arm or pointer of the dial. Fig. (i isa diagram illustrative of the circuits as used in connection withhotel-annunciators.

I will 110w describe the dial as shown in 1 Figs. 1, 2, 3, 4, and 5. Thefront a of the dial is preferably of hard rubber. The push-keys 1 2 3,dvc, are arranged in a circle upon the face of the dial, and arepreferably marked consecutively, as shown. The lever b of the key, asshown in Fig. -l, maybe connected permanently with the circuit-wire. Thepoint 0 may be connected with the wire leading to the annunciator, whilethe point d is connected with the battery. The arm or hand e, whichcarries the wheels f f is normally held in the position indicated inFigs. 1 and 2 by the stop g. This stop 9 is pivoted at g, and may bemoved between the pins or stops g 9 This arm, when released by movingthe stop g, is set in motion by the clock-work 7i, and is carried aboutthe dial. The wheels as they come successively upon. the keys I) depressthe said keys, as indicated in Fig. 5. The lever?) of the key is thusdisconnected from the point 5 5 c, which leads to the annunciator, whilea new connection is made between the lever b and the point (Z of thebattery.

As shown in Fig. 5, the wheel f is carriedby the bearing 0', a uniformpressure being main- 6o tained between the wheel and the dial by thespring k.

Any one of the keys I may be depressed by the finger, or they may bedepressed successively by causing the arm 6 to revolve. By providing twowheels ff, one on each end of the arm, it is evident that each key willbe depressed twice at each complete revolution of the arm, and the armwill keep turning until the force of the clock-spring is spent.

The clock-work may be wound up by simply taking hold of the arm 6 andturning it backward. The clock work is desirable, though it is evidentthat the pivoted arm e might be moved by hand without the aid of theclock-spring. It is evident, also, that a single arm might be used inplace of the double arm 6, and instead of a wheel a beveled piece with asmooth surface might be carried at one orboth ends of the arm to closesuccessively the contact-points.

The binding-posts Zof points (1 are shown upon the top of the case ofthe dial. The binding-posts m of points I) are shown upon the sidethereof.

The bindingpost n of the points 01 is shown upon the top of the case, asindicated in Figs. 1 and 3.

In Fig. 6 I have shown a diagram of the circuits from three differentrooms, 1 2 3, connected with the annunciator at the hotel-oifice andwith keys which are marked to correspond with the keys of my dial. Thuseach lever Z) is connected with a key, 0, of one of the rooms. Thepoint-s e are each connected with a differ ent number of the annunciatorand the points cl are connected with the batteryovire p.

A guest at any one of the rooms by depress-= ing hisv key 0 closes thecircuit of the battery g through the number of the annunciator of theroom in the usual manner. The clerk on seeing the indication can, bydepressing the key d of the dial connected with the room, send ananswer-back call, ringing the bell 'r of the guest. These keys I) arearranged, preferably, in a circle, as shown in 1 and 3, so that theclerk may, by turning the arm which is pivoted at the center of thecircle of keys, depress the said keys successively by simply turning thearm, setting the same in motion by clockwork, or otherwise.

13y reference to Fig. (i it will be seen thatl have a double-contactcircuit-closer and an electric bell in each room and an annunciator anddouble-contact circuit-closer at the hotel office or central stationwith two distinct batteries, so that there willbe no electric currentthrough the annunciator-eoils in making a return signal from the officeto the room. It will thus be seen that a call may be sentfrom the oiiiceto ring the bell in any given room while a signal at the same time isbeing sent from another room to the ann unciator at the office, and thesignals may be sent back and forth without interference. \Vhen the armcarrying one or more pressersis set in motion, the double-contactclosers b I), &c., are, one after another, separated from theircontactpoints 0 c, &c., and momentarily closed upon points (Z d, &c.,respectively, as before de scribed.

I preferably use on ly two pressers or wheels,

1 f, upon the arm, so that the bells maybe rung with, say, about fourcells of Leclanch battery.

I claim 1. The combination,with the wheel orpresser f, of a series ofkeys or levers, I), normally closed against correspondingcontact-points, 1', and the clock-work and the contact-points d of thebattery-cireuit, whereby the keys or levers b, respectively, aredisconnected momentarily from their normal contact-points and connectedsuccessively to the battery-circuit as the wheel or presser is broughtagainst the said keys or levers, substantially as and for the purposespecified.

2. The combination, with the dial, of a series of double-contact keysand their contactpoints, the arm 6, operated by clock-work, and providedwith a wheel or presser at each end, whereby the keys are depressedsuccessively as the arm is rotated by the clock-work, substantially asand for the purpose specified.

In witness whereof I hereunto subscribe my name this 10th day of July,A. D. 1884.

JOHN YOUNG.

\Vitn esses:

GEORGE P. BARTON, HARRISON P. NIcI-IOLs.

